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-rw-r--r--tools/perf/util/config.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 60ce5908c664..3f2ae19a1dd4 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -908,3 +908,34 @@ void set_buildid_dir(const char *dir)
/* for communicating with external commands */
setenv("PERF_BUILDID_DIR", buildid_dir, 1);
}
+
+struct perf_config_scan_data {
+ const char *name;
+ const char *fmt;
+ va_list args;
+ int ret;
+};
+
+static int perf_config_scan_cb(const char *var, const char *value, void *data)
+{
+ struct perf_config_scan_data *d = data;
+
+ if (!strcmp(var, d->name))
+ d->ret = vsscanf(value, d->fmt, d->args);
+
+ return 0;
+}
+
+int perf_config_scan(const char *name, const char *fmt, ...)
+{
+ struct perf_config_scan_data d = {
+ .name = name,
+ .fmt = fmt,
+ };
+
+ va_start(d.args, fmt);
+ perf_config(perf_config_scan_cb, &d);
+ va_end(d.args);
+
+ return d.ret;
+}